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Ledger assists Trezor in addressing security flaw in hardware wallets

Ledger assists Trezor in addressing security flaw in hardware wallets

Grafa2025/03/13 15:10
By: Mahathir Bayena
SAFE+0.03%

Hardware wallet provider Trezor resolved a security vulnerability in its Safe 3 and Safe 5 models after competitor Ledger’s research team identified the issue.

Ledger Donjon, the open-source security research arm of Ledger, discovered that cryptographic operations on Trezor’s microcontrollers could be exploited, leaving the devices vulnerable to advanced attacks.

Trezor had previously implemented Secure Elements—specialised chips designed to protect sensitive data such as PIN codes and cryptographic secrets.

These chips thwart inexpensive hardware attacks like voltage glitching.

However, Ledger found that an integrity check in Trezor’s firmware could be bypassed, exposing a potential attack vector.

This flaw has since been patched by Trezor, though neither company disclosed the exact details of the fix.

Charles Guillemet, Ledger’s chief technology officer, emphasised the importance of collaboration in improving security across the crypto ecosystem.

“Making the ecosystem more secure helps everyone and is critical as we push towards broader adoption of crypto and digital assets,” he stated on March 12.

Trezor reassured users that funds remained secure throughout and no immediate action was required.

The company acknowledged that “nothing is fully unbreakable” in cybersecurity but highlighted its multi-layered defense strategy, which includes Secure Elements and countermeasures against supply chain attacks.

This incident underscores the ongoing risks in hardware wallet security.

While Trezor has addressed the issue, Ledger itself has faced security breaches in the past.

In December 2023, a hacker exploited Ledger’s connector library, stealing $484,000 worth of crypto assets.

Additionally, a 2020 data breach exposed mailing addresses of approximately 270,000 Ledger customers.

Disclaimer: The content of this article solely reflects the author's opinion and does not represent the platform in any capacity. This article is not intended to serve as a reference for making investment decisions.
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